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Crystalline silica is a common mineral that is found in materials that construction workers deal with every day – such as roads, buildings, and sidewalks. It is a common component of sand, stone, rock, concrete, brick, block and mortar. Common workplace operations involving cutting, sawing, drilling, and crushing of these materials often create crystalline silica dust exposure in construction. Scientific evidence shows that current exposure limits do not adequately protect worker health. The …